As John pointed out earlier, this really is a display function and may best be handled in the from end app or in reporting software.

If you'd like to take that rout, this is a function I've used in SSRS in the past.

It uses seconds instead of minutes but it would be easy enough to make the necessary adjustments...

Function DHMS2(NumberOfSeconds as Long) as String

Dim NumberOfMinutes as Long

Dim NumberOfHours as Long

Dim NumberOfDays as Long

NumberOfDays = NumberOfSeconds \ 86400

NumberOfSeconds = NumberOfSeconds Mod 86400

NumberOfHours = NumberOfSeconds \ 3600

NumberOfSeconds = NumberOfSeconds Mod 3600

NumberOfMinutes = NumberOfSeconds \ 60

NumberOfSeconds = NumberOfSeconds Mod 60

DHMS2 = IIF(NumberofDays<10,"0" & NumberOfDays, NumberOfDays) & ":"

DHMS2 = DHMS2 &IIF(NumberOfHours<10,"0" & NumberOfHours, NumberOfHours) & ":"

DHMS2 = DHMS2 &IIF(NumberOfMinutes<10,"0" & NumberOfMinutes, NumberOfMinutes) & ":"

DHMS2 = DHMS2 &IIF(NumberOfSeconds<10,"0" & NumberOfSeconds,NumberOfSeconds)

End Function